It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
The Secrets of PC Memory: Part 4 The Secrets of PC Memory: Part 4
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read


The Secrets of PC Memory: Part 4
Reply
 
Thread Tools
Old 11th February 2008, 10:56   #1
Madshrimp
 
jmke's Avatar
 
Join Date: May 2002
Location: 7090/Belgium
Posts: 78,612
jmke has disabled reputation
Default The Secrets of PC Memory: Part 4

For better signal quality at higher speed grades, DDR3 adopts a so called “Fly-by” architecture for the commands, addresses and clock signals. This effectively reduced the number of stubs and signalling length from the DDR2 T-Branch architecture to a more elegant and straightforward design.

The Fly-by topology generally connects the DRAM chips on the memory module in a series, and at the end of the linear connection is a grounded termination point that absorbs residual signals, to prevent them from being reflected back along the bus.

We recently asked Aaron Boehm, an Application Engineer at Micron about how important the Fly-by topology is to DDR3. He said that the Fly-by design was “ very important in DDR3. Probably one of the biggest advantages of moving to the Fly-by topology is that we are able to achieve a much faster slew rate for the signal. This gives us a bigger data-eye, which is very important in DRAM.”

http://www.bit-tech.net/hardware/200...emory_part_4/1
__________________
jmke is offline   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Secrets of PC Memory: Part 3 jmke WebNews 0 9th February 2008 13:49
The Secrets of Memory: Part 2 jmke WebNews 0 17th December 2007 11:38
The Secrets of PC Memory jmke WebNews 0 16th November 2007 09:09
Interactive Memory Product ID guide to decode RAM part numbers jmke WebNews 0 16th October 2007 09:19
Basics of Flash Memory, Part 1: SD and MMC Sidney WebNews 0 11th March 2005 15:11
Guide to New Hardware Technologies Part I: Memory Da_BoKa WebNews 0 9th December 2004 15:19
FINAL Part of the Virtual Memory Optimization Guide Rev. 4.0 Da_BoKa WebNews 0 16th November 2004 23:33
Virtual Memory Optimization Guide Part 4 jmke WebNews 2 13th November 2004 13:50
Virtual Memory Optimization Guide Part 3 Sidney WebNews 0 7th November 2004 18:12
Virtual Memory Optimization Guide Part 2 jmke WebNews 0 3rd November 2004 14:49

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


All times are GMT +1. The time now is 22:52.


Powered by vBulletin® - Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO